5056 Delafield Avenue

Riverdale | built 1927

The city photographed every building for its tax records around 1940 and again in the 1980s. NYC Municipal Archives.

Written with AI from the source each entry cites, then fact-checked.

1926
Park Avenue couple build the house on speculation, and a physician buys it
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Stephen G. and Charlotte G. Williams, who lived at 1155 Park Avenue in Manhattan, appear to have built this Julius Gregory design as one of four speculative houses in the area in the late 1920s; the other three are 434 West 250th Street, 4715 Iselin Avenue and 4260 Delafield Avenue. Physician Julius J. Valentine apparently bought it from them.
“…apparently as one of four speculative houses constructed in the area in the late 1920s by Stephen G. and Charlotte G. Williams…”
Source: NYC Landmarks Preservation Commission
1986
A two-story addition with a carport is built on the north side
Around 1986, under permit ALT 417-1986, a two-story addition went up on the north side of the house, with an open carport at basement level and living space on the two floors above. The commission found the original Medieval Revival house still remarkably intact, with its asymmetrical front, battened door with its hood, mansard roof, and dormers both shed and gabled.
“…a two-story addition with an open carport at the basement level and living space at the first and second floors, circa 1986 (ALT 417-1986)…”
Source: NYC Landmarks Preservation Commission

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